Linear Technology LT4363 Datasheet page 20

LT4363
Typical applicaTions
V
12V
SMAJ58A
*DIODES INC.
20
Overvoltage Regulator with Reverse Input Protection Up to –80V
Q2
IRLR2908
V
IN
12V
R4
Q3
10
2N3904
D2
R5
1N4148
1M
R7
10k
D1*
V
SMAJ58CA
D3**
1N4148
6
SHDN
8
UV
7
OV
*DIODES INC.
**SANYO 25CE22GA
***OPTIONAL COMPONENT
FOR REDUCED STANDBY CURRENT
Overvoltage Regulator with 250V Surge Protection
IN
R6
49.9k
Q2
MPS-A42
D1*
C1
47nF
5
C2
V
0.1µF
R4
CC
127k
6
SHDN
8
UV
R5
49.9k
7
OV
For more information
R
Q1
SNS
10m
IRLR2908
R3
10
C1
47nF
5 4 3 2
GATE SNS OUT
CC
1
FB
LT4363DE-2
11
ENOUT
10
FLT
GND TMR
9 12 4363 TA05
C
TMR
0.1µF
Q1 R
SNS
FDB33N25 10m
R3
10
R1
57.6k
4 3 2
GATE SNS OUT
1
FB
R2
4.99k
LT4363DE-2
11
ENOUT
10
FLT FAULT
GND TMR
9 12
4363 TA07
C
TMR
0.1µF
www.linear.com/LT4363
V
OUT
12V, 3A
C **
L
CLAMPED
22µF
AT 16V
R1
57.6k
R2
4.99k
OUTPUT
CLAMP
C
L
AT 16V
22µF
V
CC
DC/DC
CONVERTER
SHDN
GND
4363fb